Add initial code

Define directory structure and add initial EFA data path CUDA
implementation along with getting-started documentation with code
examples.

Signed-off-by: Michael Margolin <mrgolin@amazon.com>

Author: mrgolin

CUDA/Makefile

@@ -0,0 +1,30 @@
+NVCC=nvcc
+NVCC_FLAGS=-G -rdc=true
+CUDA_FLAGS=-Xcompiler -fPIC
+
+SRCDIR=src
+BUILDDIR=build
+INCDIR=$(BUILDDIR)/include
+
+all: $(BUILDDIR)/libefacudadp.so headers
+
+$(BUILDDIR):
+	mkdir -p $(BUILDDIR)
+
+$(INCDIR): | $(BUILDDIR)
+	mkdir -p $(INCDIR)
+
+headers: $(INCDIR)
+	cp $(SRCDIR)/*.h $(SRCDIR)/*.cuh $(INCDIR)/
+
+$(BUILDDIR)/libefacudadp.so: $(BUILDDIR)/efa_cuda_dp.cu.o $(BUILDDIR)/efa_cuda_dp.o | $(BUILDDIR)
+	$(NVCC) $(NVCC_FLAGS) -shared -o $@ $^
+
+$(BUILDDIR)/efa_cuda_dp.cu.o: $(SRCDIR)/efa_cuda_dp.cu $(SRCDIR)/efa_cuda_dp.cuh $(SRCDIR)/efa_cuda_dp_impl.cuh | $(BUILDDIR)
+	$(NVCC) $(NVCC_FLAGS) -c $< $(CUDA_FLAGS) -o $@
+
+$(BUILDDIR)/efa_cuda_dp.o: $(SRCDIR)/efa_cuda_dp.cpp $(SRCDIR)/efa_cuda_dp.h $(SRCDIR)/efa_cuda_dp.cuh | $(BUILDDIR)
+	$(NVCC) $(NVCC_FLAGS) -c $< $(CUDA_FLAGS) -o $@
+
+clean:
+	rm -rf $(BUILDDIR)